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Take The A Train in E
Take The A Train in E — Duke Ellington's anthem, defined by its signature #IV chord (II7#11). Use Lydian Dominant over that chord for the characteristic uptown sound, Bebop Major everywhere else. Changes: E6 – F#7b5 – F#m7 – B7 – E – E7/e – A – C7/Gb – B9 – Emaj9 – AMaj7 – F#7 – F#m9 – F9.
Key of E
E major is arguably guitar's most powerful key. The open low E and high E strings ring sympathetically as the root, while the open B provides the fifth. This triple reinforcement gives E-based riffs and chords unmatched depth and volume. E is a beginner-level key on guitar because both the low E and high E strings ring as the root, and the open B is the fifth — three open strings reinforce the tonic chord. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through E to F# (ascending whole step), F# to F# (ascending unison), F# to B (ascending perfect fourth), B to E (ascending perfect fourth), E to E (ascending unison), E to A (ascending perfect fourth), A to C (ascending minor third), C to B (descending half step), B to E (ascending perfect fourth), E to A (ascending perfect fourth), A to F# (descending minor third), F# to F# (ascending unison), F# to F (descending half step). A half-step bass movement creates a strong leading-tone pull that demands resolution. The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from F to E by half step.
Scales for Improvisation
E major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, E Mixolydian adds the flat seventh for an authentic blues-rock edge.